ICON A5 MM : Flight Controls : Flap Controls : Inspection Instructions : Inspect Flap Rigging
Inspect Flap Rigging
100109-00
Perform ground rigging inspection check on A5 flaps.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
Digital level with 0.1° resolution and Alt Ref function, calibrated to manufacturer’s instructions.
Parts Required
None
Aircraft System and Number
14—Wing
Safety Equipment
As Needed
Consumables
None
Task Instructions
1. Check the radial free play of all flap hinges (3 per flap). Total diametrical clearance (from displaced fully one direction to displaced fully in the opposite direction) in excess of .020 requires replacement of the flap hinge pin.
2. Cycle flaps through all flap settings to ensure system function.
3. Select 0° flap and verify flaps are in line with the center wing trailing edge ±.020”.
4. Select 0° flap position and secure digital level to flap surface with its long axis perpendicular to flap hinge line.
5. Align flap’s trailing edge to that of the inboard wing by applying hand pressure to the flap if necessary, and then set the Alt Ref function of the level.
6. Pull up on flap trailing edge with light pressure (~2 lbf) to remove play. Record the level’s reading in table below.
7. Select 15° flap position. Pull up on flap trailing edge with a light pressure to remove play. Record the level reading in table below.
8. Select 30° flap position. Again, pull up on flap trailing edge with a light pressure to remove play. Record the level reading in table below.
9. Repeat steps 1-8 on other side.
Reg. No. of Aircraft:
Date of Test:
Initials of Technician:
Left Flap
____° Up (See Step 2)
____° Mid (15±3°)
____° Down (30±3°)
Right Flap
____° Up (See Step 2)
____° Mid (15±3°)
____° Down (30±3°)
Verification Method
Record results and check deflection limits relative to the 0° position.